From nobody Tue May 03 17:08:46 2022 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id BFB781AC2764 for ; Tue, 3 May 2022 17:08:50 +0000 (UTC) (envelope-from glebius@freebsd.org) Received: from cell.glebi.us (glebi.us [162.251.186.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "cell.glebi.us", Issuer "cell.glebi.us" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Kt5yn4sNlz4tCc for ; Tue, 3 May 2022 17:08:49 +0000 (UTC) (envelope-from glebius@freebsd.org) Received: from cell.glebi.us (localhost [127.0.0.1]) by cell.glebi.us (8.16.1/8.16.1) with ESMTPS id 243H8lTB002440 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Tue, 3 May 2022 10:08:47 -0700 (PDT) (envelope-from glebius@freebsd.org) Received: (from glebius@localhost) by cell.glebi.us (8.16.1/8.16.1/Submit) id 243H8kSQ002439; Tue, 3 May 2022 10:08:46 -0700 (PDT) (envelope-from glebius@freebsd.org) X-Authentication-Warning: cell.glebi.us: glebius set sender to glebius@freebsd.org using -f Date: Tue, 3 May 2022 10:08:46 -0700 From: Gleb Smirnoff To: Florian Smeets Cc: Michael Butler , freebsd-current@freebsd.org Subject: Re: IPv6 TCP: first two SYN packets to local v6 unicast addresses ignored Message-ID: References: <131c363a-7b7d-a106-5b8a-6838e7a66567@smeets.xyz> <9679642b-5de6-28be-a64b-07375c3efeba@smeets.xyz> <7cd2e76a-c6d1-e8d7-b9fb-b8797f1ca731@smeets.xyz> <49214a89-28e6-acbb-b10d-38bf2685b78b@smeets.xyz> List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49214a89-28e6-acbb-b10d-38bf2685b78b@smeets.xyz> X-Rspamd-Queue-Id: 4Kt5yn4sNlz4tCc X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=softfail (mx1.freebsd.org: 162.251.186.162 is neither permitted nor denied by domain of glebius@freebsd.org) smtp.mailfrom=glebius@freebsd.org X-Spamd-Result: default: False [-3.10 / 15.00]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; FREEFALL_USER(0.00)[glebius]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; HAS_XAW(0.00)[]; DMARC_NA(0.00)[freebsd.org]; R_SPF_SOFTFAIL(0.00)[~all]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-0.996]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; MLMMJ_DEST(0.00)[freebsd-current]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:27348, ipnet:162.251.186.0/24, country:US]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-ThisMailContainsUnwantedMimeParts: N On Sun, Apr 24, 2022 at 09:49:48AM +0200, Florian Smeets wrote: F> On 23.04.22 01:38, Gleb Smirnoff wrote: F> > Hi Florian, F> > F> > here is a patch that should help with the IPv6 problem. I'm not F> > yet committing it, it might be not final. F> F> yes, the patch resolves the issue. There is just one SYN packet, and it F> gets a reply immediately. Alexander provided a patch against the ip6_output inconsistency: https://reviews.freebsd.org/D35117 You might be interested in testing it together with my patch. I will commit mine only after Alexander commits his. -- Gleb Smirnoff